Both SMD electronic components & SMT technology breed the best quality in the industry. Lavaliere Microphone ,high sensitive ,anti-whistle and high quality. Quartz locked anti-vibration circuit enables the frequency receipt stability and antijamming. It comes with A/C power supply ,built in rechargeable batteries and DC power supply. Wired and wireless speaker can be used simultaneously. Cassette tape play function with wired and wireless speaker volume can be adjusted separately. With audio output. With USB function, can play music directly. Bass & trebles with tone control. Digital mixing and echoing is built in Built-in charge and low voltage battery protection, no need to look after charge ApplicationTEACHING, LECTURE, WORKSHOP CONFERENCE, ASSEMBLY,SINGING PRACTICE (Competition Mic Handling ),PICNIC,POOJA, BHAJAN, SANGAT, FAMILY FUNCTIONSNote: 1.Model Look may be vary as availabity 2.We always check every Sold Product before dispach.